[material-ui][Select] Fix variant type

[sai6855]

closes #41401
closes #41356
closes #41375
closes #41410

• I have followed (at least) the PR section of the contributing guide.

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[DiegoAndai]

Thanks for working on this @sai6855, the change looks good for the problem it solves.

I wonder if you have thoughts about #41356. Any ideas on how to solve that?

[DiegoAndai]

This looks good @sai6855! #41401 and #41356 are fixed. For #41410, we're missing the error on line 64 of this playground:

If we don't fix that one, then I don't know how users will be able to wrap the Select component, which is a common use case.

There's another error on line 73 for which I couldn't find a fix, but we can accept that one as a TS limitation.

cc: @michaldudak

[sai6855]

@DiegoAndai #41410 is fixed now, i changed implementation by removing Variant argument entirely (it's causing more problems then solving) from Select and SelectProps and retained ability to add hiddenLabel prop to only filled variant.

I hope i covered all possbile scenarios in tests, but let me know if you see anything missing.

Also updated issues in PR description

[DiegoAndai]

Thanks, @sai6855, great work managing all those issues. I think this is the best solution. I agree that the Variant argument seems to be causing more problems than it fixes.

I would like to get @michaldudak's opinion on this before merging.

Also, I'll leave a comment at #39137 to see if people involved in that PR have any opinions about this change.